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By Lancaster Course in Ophthalmology
1980 - Uploaded on Mar 4, 2019.
- Last modified by Caroline Bozell on Mar 14, 2019.
- Rating
- Appears in
- Unit 14 Melanomas of the Eyes
- Condition/keywords
- melanoma, sclera, scleral indentation
- Description
- Choroidal melanomas, particularly in the macular region, invaginate or become "embedded" in the underlying sclera. This results in thinning and slight ectasia of the sclera but in most case no actual tumor invasion. This tendency has clinical significance in that the tumor may obtain an appreciable size but have minimal elevation, and its dimensions may not be appreciated ophthalmoscopically. Direct invasion of the sclera occurs in about 15 percent of tumors.
